66331466036552 has 16 divisors (see below), whose sum is σ = 125090409218940. Its totient is φ = 32974023578176.

The previous prime is 66331466036519. The next prime is 66331466036569. The reversal of 66331466036552 is 25563066413366.

It can be written as a sum of positive squares in 2 ways, for example, as 65949114260836 + 382351775716 = 8120906^2 + 618346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23963678543 + ... + 23963681310.

Almost surely, 2^{66331466036552} is an apocalyptic number.

It is an amenable number.

66331466036552 is a deficient number, since it is larger than the sum of its proper divisors (58758943182388).

66331466036552 is a wasteful number, since it uses less digits than its factorization.

66331466036552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47927360032 (or 47927360028 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 56.

The spelling of 66331466036552 in words is "sixty-six trillion, three hundred thirty-one billion, four hundred sixty-six million, thirty-six thousand, five hundred fifty-two".